Rate limits of additive manufacturing by fused filament fabrication and guidelines for high-throughput system design (2024)

Go, J., Schiffres, S. N., Stevens, A. G., & Hart, A. J. (2017). Rate limits of additive manufacturing by fused filament fabrication and guidelines for high-throughput system design. Additive Manufacturing, 16, 1-11. https://doi.org/10.1016/j.addma.2017.03.007

Go, Jamison ; Schiffres, Scott N. ; Stevens, Adam G. et al. / Rate limits of additive manufacturing by fused filament fabrication and guidelines for high-throughput system design. In: Additive Manufacturing. 2017 ; Vol. 16. pp. 1-11.

@article{e02e6c90849a4a29960ff3b1b5684472,

title = "Rate limits of additive manufacturing by fused filament fabrication and guidelines for high-throughput system design",

abstract = " As additive manufacturing (AM) advances rapidly towards new materials and applications, it is vital to understand the performance limits of AM technologies and to overcome these limits via improved machine design and process integration. Extrusion-based AM (i.e., fused filament fabrication, FFF) is compatible with a wide variety of thermoplastic polymer and composite materials, and can be deployed across a wide range of length scales. However, the build rate of both desktop and professional FFF systems is comparable (∼10's of cm 3 /h at ∼0.2mm layer thickness), suggesting that fundamental aspects of the machine design and process physics limit system performance. We determine the rate limits to FFF by analysis of machine modules: the filament extrusion mechanism, the heater and nozzle, and the motion system. We determine, by direct measurements and numerical analysis, that FFF build rate is influenced by the coincident module-level limits to traction force exerted on the filament, conduction heat transfer to the filament core, and gantry velocity for positioning the printhead. Our findings are validated by direct measurements of build rate versus part complexity using desktop FFF systems. Last, we study the scaling of the rate limits using finite element simulations of thermoplastic flow through the extruder. We map the scaling of extrusion force, polymer exit temperature, and average printhead velocity onto a unifying trade-space of build rate versus resolution. This approach validates the build rate performance of current FFF systems, and suggests that significant enhancements in FFF build rate with targeted quality specifications are possible via mutual improvements to the extrusion and heating mechanism along with high-speed motion systems.",

keywords = "Filament shear area, Fused filament fabrication, Liquefier dynamics, Module limitations, Performance map",

author = "Jamison Go and Schiffres, {Scott N.} and Stevens, {Adam G.} and Hart, {A. John}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = aug,

day = "1",

doi = "10.1016/j.addma.2017.03.007",

language = "English",

volume = "16",

pages = "1--11",

journal = "Additive Manufacturing",

issn = "2214-8604",

publisher = "Elsevier",

}

Go, J, Schiffres, SN, Stevens, AG & Hart, AJ 2017, 'Rate limits of additive manufacturing by fused filament fabrication and guidelines for high-throughput system design', Additive Manufacturing, vol. 16, pp. 1-11. https://doi.org/10.1016/j.addma.2017.03.007

Rate limits of additive manufacturing by fused filament fabrication and guidelines for high-throughput system design. / Go, Jamison; Schiffres, Scott N.; Stevens, Adam G. et al.
In: Additive Manufacturing, Vol. 16, 01.08.2017, p. 1-11.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Rate limits of additive manufacturing by fused filament fabrication and guidelines for high-throughput system design

AU - Go, Jamison

AU - Schiffres, Scott N.

AU - Stevens, Adam G.

AU - Hart, A. John

N1 - Publisher Copyright:© 2017 Elsevier B.V.

PY - 2017/8/1

Y1 - 2017/8/1

N2 - As additive manufacturing (AM) advances rapidly towards new materials and applications, it is vital to understand the performance limits of AM technologies and to overcome these limits via improved machine design and process integration. Extrusion-based AM (i.e., fused filament fabrication, FFF) is compatible with a wide variety of thermoplastic polymer and composite materials, and can be deployed across a wide range of length scales. However, the build rate of both desktop and professional FFF systems is comparable (∼10's of cm 3 /h at ∼0.2mm layer thickness), suggesting that fundamental aspects of the machine design and process physics limit system performance. We determine the rate limits to FFF by analysis of machine modules: the filament extrusion mechanism, the heater and nozzle, and the motion system. We determine, by direct measurements and numerical analysis, that FFF build rate is influenced by the coincident module-level limits to traction force exerted on the filament, conduction heat transfer to the filament core, and gantry velocity for positioning the printhead. Our findings are validated by direct measurements of build rate versus part complexity using desktop FFF systems. Last, we study the scaling of the rate limits using finite element simulations of thermoplastic flow through the extruder. We map the scaling of extrusion force, polymer exit temperature, and average printhead velocity onto a unifying trade-space of build rate versus resolution. This approach validates the build rate performance of current FFF systems, and suggests that significant enhancements in FFF build rate with targeted quality specifications are possible via mutual improvements to the extrusion and heating mechanism along with high-speed motion systems.

AB - As additive manufacturing (AM) advances rapidly towards new materials and applications, it is vital to understand the performance limits of AM technologies and to overcome these limits via improved machine design and process integration. Extrusion-based AM (i.e., fused filament fabrication, FFF) is compatible with a wide variety of thermoplastic polymer and composite materials, and can be deployed across a wide range of length scales. However, the build rate of both desktop and professional FFF systems is comparable (∼10's of cm 3 /h at ∼0.2mm layer thickness), suggesting that fundamental aspects of the machine design and process physics limit system performance. We determine the rate limits to FFF by analysis of machine modules: the filament extrusion mechanism, the heater and nozzle, and the motion system. We determine, by direct measurements and numerical analysis, that FFF build rate is influenced by the coincident module-level limits to traction force exerted on the filament, conduction heat transfer to the filament core, and gantry velocity for positioning the printhead. Our findings are validated by direct measurements of build rate versus part complexity using desktop FFF systems. Last, we study the scaling of the rate limits using finite element simulations of thermoplastic flow through the extruder. We map the scaling of extrusion force, polymer exit temperature, and average printhead velocity onto a unifying trade-space of build rate versus resolution. This approach validates the build rate performance of current FFF systems, and suggests that significant enhancements in FFF build rate with targeted quality specifications are possible via mutual improvements to the extrusion and heating mechanism along with high-speed motion systems.

KW - Filament shear area

KW - Fused filament fabrication

KW - Liquefier dynamics

KW - Module limitations

KW - Performance map

UR - http://www.scopus.com/inward/record.url?scp=85019017980&partnerID=8YFLogxK

U2 - 10.1016/j.addma.2017.03.007

DO - 10.1016/j.addma.2017.03.007

M3 - Article

AN - SCOPUS:85019017980

SN - 2214-8604

VL - 16

SP - 1

EP - 11

JO - Additive Manufacturing

JF - Additive Manufacturing

ER -

Go J, Schiffres SN, Stevens AG, Hart AJ. Rate limits of additive manufacturing by fused filament fabrication and guidelines for high-throughput system design. Additive Manufacturing. 2017 Aug 1;16:1-11. doi: 10.1016/j.addma.2017.03.007